Wrong management address used for graceful shutdown XTS tests

"alternative-server" of wildfly-ts-integ-xts module use wrong managementAddress
https://github.com/wildfly/wildfly/blob/master/testsuite/integration/xts/src/test/config/arq/arquillian.xml

"alternative-server" use 100 port offset, but doesn't change the managementAddress, this make tests fail with "Could not start container" in case that node0 is not binded to localhost
https://github.com/wildfly/wildfly/blob/master/testsuite/integration/src/test/scripts/xts-build.xml

reproduce

1. $MYTESTIP_1 != localhost

   ./integration-tests.sh -Dts.xts  -Dts.noSmoke -Dnode0=$MYTESTIP_1
   Tests in error: 
     CompensatableTestCase.org.jboss.as.test.xts.annotation.client.CompensatableTestCase » Runtime
     TransactionalTestCase.org.jboss.as.test.xts.annotation.client.TransactionalTestCase » Runtime
     CompensationScopedTestCase.org.jboss.as.test.xts.annotation.compensationScoped.CompensationScopedTestCase » Runtime
     AtomicTransactionSuspendTestCase.org.jboss.as.test.xts.suspend.wsat.AtomicTransactionSuspendTestCase » Lifecycle
     BusinessActivitySuspendTestCase.org.jboss.as.test.xts.suspend.wsba.BusinessActivitySuspendTestCase » Runtime
     ATTestCase.org.jboss.as.test.xts.wsat.client.ATTestCase » Runtime Arquillian h...
     BACoordinatorCompletionTestCase.org.jboss.as.test.xts.wsba.coordinatorcompletion.client.BACoordinatorCompletionTestCase » Runtime
     BAParticipantCompletionTestCase.org.jboss.as.test.xts.wsba.participantcompletion.client.BAParticipantCompletionTestCase » Runtime
   
   Tests run: 8, Failures: 0, Errors: 8, Skipped: 0